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The MBUS provides more than address translation and bandwidth control. It also provides a PMU to measure bandwidth usage by certain masters, and it provides notification via IRQ when they are active or idle. The MBUS is also tightly integrated with the DRAM controller to provide a Memory Dynamic Frequency Scaling (MDFS) feature. In view of this, the MBUS binding needs to represent the hardware resources needed for MDFS, which include the clocks and MMIO range of the adjacent DRAM controller. Add the additional resources for the H3 and A64 compatibles, and a new example showing how they are used. Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20211118031841.42315-3-samuel@sholland.org
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.